src/donations: Don't update updatedAt field on iris re-import

Since campaign donations are ordered by updatedAt field on the front-end, this causes to bank donations to reappear at top every hour.
Temporary solution until we figure out, the reason updating of imported donation is needed.

apps/api/src/donations/donations.service.ts

@@ -583,7 +583,7 @@ export class DonationsService {
       //Donation exists, so updating with incoming donation without increasing vault amounts
       await this.prisma.donation.update({
         where: { extPaymentIntentId: donationDto.extPaymentIntentId },
-        data: donationDto,
+        data: { ...donationDto, updatedAt: existingDonation.updatedAt },
       })
       return ImportStatus.UPDATED
     })